CN107601862A - A kind of plate glass batch and preparation method thereof - Google Patents
A kind of plate glass batch and preparation method thereof Download PDFInfo
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- CN107601862A CN107601862A CN201710805317.6A CN201710805317A CN107601862A CN 107601862 A CN107601862 A CN 107601862A CN 201710805317 A CN201710805317 A CN 201710805317A CN 107601862 A CN107601862 A CN 107601862A
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- saltcake
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Abstract
The present invention relates to a kind of plate glass batch and preparation method thereof, it is made up of sandstone, soda ash, feldspar, lime stone, dolomite, saltcake, coal dust, the dosage of the coal dust is the 2.4 ~ 3.6% of conventional saltcake dosage；Take out the 5 ~ 50% of saltcake dosage and composite particles, characteristics of coal powder 0.15 ~ 0.4mm of scope ＞ 90%, 0.3 ~ 0.9mm of particle size range ＞ 90% of composite particles is made with the coal dust of the dosage；Composite particles and remaining saltcake are jointly added in batch.The present invention has a following advantage, and 1）The accurate of saltcake coal dust proportioning has been effectively ensured；2）Saltcake has completely cut off coal dust and air contact in coal dust is coated on, and effectively prevent coal dust into the too early burn-up after melting furnaces；3）" glass gall " will not be produced and corrode furnace refractory, not having excessive coal dust makes glass coloration；4）Reduce pulverized coal consumption, it is possible to reduce greenhouse gases C02 discharge capacity.
Description
Technical field
The invention belongs to process of glass field, and in particular to a kind of plate glass batch and preparation method thereof.
Background technology
Plate glass batch generally presses one by raw materials such as sandstone, soda ash, feldspar, lime stone, dolomite, saltcake, coal dusts
Certainty ratio is mixed, and during production, batch is put into melting furnaces and heated, and is converted into after the physical and chemical reaction of a series of complex
Melt, contain a large amount of bubbles in melt, by clarification, the bubble in removing glass metal, then it is homogenized, shape, anneal, cutting
The processes such as sanction, plate glass is made.In glass melting process, saltcake plays fluxing and clarification, generally requires and matches somebody with somebody with coal dust
Close and use, the main component in saltcake is Na2S04, heat decomposition temperature is up to 1200 ~ 1300 DEG C, adds coal dust（Carbon）As reduction
After agent, its decomposition temperature can reduce by 300 DEG C, substantially increase reaction speed.The dosage of saltcake be coordinate doses 1 ~ 1.5%, coal
The dosage of powder is 4 ~ 6 % of saltcake amount, and in order to ensure that saltcake fully contacts with coal dust, glass works is typically saltcake and coal dust
First mixed in small mixer, the raw material after premix is then mixed and made into cooperation together with other raw materials in big mixer again
Material.By the saltcake and coal dust of premix in subsequent technological process, the saltcake moisture absorption can be adhered in equipment, vibration equipment and turn
Sub-material can be caused by carrying drop, and remixing in big mixer can be such that saltcake, coal dust separates again, and these factors can all make premix
Effect is destroyed, and makes saltcake, coal dust proportioning inaccurate.When saltcake coal dust proportioning is inaccurate, if coal dust is insufficient, saltcake is not
It can fully decompose, excess " glass gall " can be produced, corrode furnace refractory, if coal dust amount is excessive, glass coloration can be made, influence
Glass quality.
The content of the invention
The purpose of the present invention be exactly in order to overcome batch saltcake of the prior art, the shortcomings that coal dust proportioning is inaccurate,
A kind of glass batch provided and preparation method thereof.
The present invention adopts the following technical scheme that:
A kind of plate glass batch, is made up of sandstone, soda ash, feldspar, lime stone, dolomite, saltcake, coal dust, wherein sandstone,
Soda ash, feldspar, lime stone, dolomite, the proportional quantity of saltcake are identical with existing conventional panel glass batch, it is characterised in that
The dosage of the coal dust is 2.4 ~ 3.6 % of saltcake weight；The 5 ~ 50% of saltcake dosage are taken out to be made again with the coal dust of the dosage
Particle is closed, composite particles are to be coated on outer layer by core, saltcake of pulverized coal particle and formed, characteristics of coal powder scope 0.15 ~
0.4mm ＞ 90%, 0.3 ~ 0.9mm of particle size range ＞ 90% of composite particles；Composite particles and remaining saltcake are jointly added to match somebody with somebody
Close in material.
A kind of preparation method of plate glass batch, comprises the following steps：
（1）, by coal dust dosage be saltcake weight 2.4 ~ 3.6 %, weigh the coal dust amount needed for a secondary glass batch, grain
0.15 ~ 0.5mm of scope ＞ 90% are spent, are dried for standby；
（2）, weigh saltcake amount needed for a secondary glass batch, taking wherein 5 ~ 50% saltcake, to be configured to sodium sulphate saturation molten
Liquid is standby；
（3）, using above-mentioned pulverized coal particle as core, above-mentioned saturation metabisulfite solution is sprayed into pulverized coal particle surface, makes sodium sulphate
The rapid evaporation drying of solvent in solution, saltcake are solidificated in pulverized coal particle surface, realize that saltcake exists after multiple coating cycles
The radial growth on pulverized coal particle surface, forms composite particles, and 0.3 ~ 0.8mm of particle size range ＞ 90% of above-mentioned composite particles are above-mentioned
After solution exhausts, composite particles are taken out；
（4）, above-mentioned composite particles are mixed with remaining saltcake in step 2 and other materials by usual way, be made
Glass batch.
Further, also contain additive in above-mentioned sodium sulphate saturated solution, the additive include surfactant and
Adhesive, the additive addition are 0.5 ~ 5Wt%, the hydrocarbon oxygen compound preferably containing sodium, silicon, as surfactant is wooden
Plain sodium sulfonate, adhesive waterglass.
The batch of the present invention is melted using existing temperature schedule：
At 260 ~ 300 DEG C, coal dust meeting and air reaction in existing process, that is, burn up, C+O2→C02, it will usually have 40% or so
Burn-up.After composite particles are made, saltcake has completely cut off coal dust and air contact, effectively prevent coal dust and enter in coal dust is coated on
Enter the too early burn-up after melting furnaces, therefore the dosage of coal dust can be adjusted to the 60% of former dosage.
At 400 ~ 500 DEG C, the solid phase reaction between saltcake and carbon starts, and has sulfide generation, Na2S04+2C→Na2S+
2C02, more than 500 DEG C, sulfide participates in batch reaction, Na2S+Na2S04+2SiO2→2Na2 Si 03+S02+ S, about 900
DEG C when, sulfide promote saltcake decompose, 3Na2S04+Na2S→4Na20+4S02, spent than being advanced by by thermal decomposition 300 DEG C, product more
Na20 can be dissolved in saltcake, can also be dissolved in glass metal, greatly reduce the interfacial tension at all solid liquid interfaces, produce violent
Turbulence, greatly promotes silicate reaction, 885 DEG C, Na2S04Melting, meanwhile, Na2S and quartz particles start in the solution of formation
Dissolving, because composite particles make awns coal proportion speed, " glass gall " will not be produced and corrode furnace refractory；
The present invention has a following advantage compared with the prior art, and 1）Composite particles will not make saltcake, coal in subsequent process flow
The separation again of powder, the accurate of saltcake coal dust proportioning is effectively ensured；2）In coal dust is coated on by saltcake, completely cut off coal dust with it is empty
Gas contacts, and effectively prevent coal dust into the too early burn-up after melting furnaces； 3）" glass gall " will not be produced and corrode furnace refractory,
Not having excessive coal dust makes glass coloration；4）Reduce pulverized coal consumption, it is possible to reduce greenhouse gases C02 discharge capacity.
Specific embodiment：
A kind of plate glass batch, is made up of sandstone, soda ash, feldspar, lime stone, dolomite, saltcake, coal dust, with big every time
Exemplified by the material quantity of mixer mixing is 2000kg, units/kg, wherein sandstone 1214.07, soda ash 366.49, feldspar 50.86, stone
Lime stone 95.92, dolomite 291.82, saltcake 18.03, wherein coal dust 0.71,0.15 ~ 0.4mm of coal powder size ＞ 90%.Take
5.50kg saltcake is configured to sodium sulphate saturated solution, the surfactant sulfomethylated lignin in saturated solution also containing 0.5 % amounts
The adhesive waterglass of sour sodium, 1% amount（Sodium metasilicate Na2SiO3）, coal is lyophobic dust, and the surfactant that the present invention designs can
To reduce the surface tension of solution, wetting capacity and adhesive rate of the solution to pulverized coal particle are improved, adhesive can make adhesiveness
Increase, increases the growth rate of composite particles.Above-mentioned surfactant and adhesive will not bring impurity to batch,
Sodium, silicon are chemical elements main in glass, are decomposed under hydrocarbon oxygen compound high temperature and produce the volatilization such as carbon dioxide and vapor
Property gas, from glass metal discharge.
Using fluidized bed spray granulation method, above-mentioned saturated solution is sprayed into pulverized coal particle surface, fluidization air and
The grain sensible heat of itself makes the rapid evaporation drying of solvent, and sodium chloride crystal is solidificated in particle surface, is sprayed by repeatedly circulation, solidification
Afterwards, realize radial growth of the saltcake crystal in particle surface, form composite particles, the particle size ranges 0.3 of above-mentioned composite particles ~
0.9mm ＞ 90%, after above-mentioned solution exhausts, take out composite particles；
By above-mentioned composite particles and remaining saltcake and other raw materials input mixer, mixed, be made by usual way
Glass batch, furnace hopper is put into, repeat above blending process, until assorting the cooperation doses needed for fusing.
Batch in feed bin is put into melting furnaces, melted using three oxidizing atmosphere, reducing atmosphere, oxidizing atmosphere sections
Change, clarification, then the process such as homogenized, shaping, annealing, cutting, plate glass is made, cuts 1 × 1 meter of print with being generally mated
Print is contrasted made from material, such as following table, and as a result Bubbles in Glass quantity and size have all been reduced, and glass quality grade obtains
To raising.
| Bubble size（mm） | 0.3≤L≤0.5 | ≤1.0 | L≤1.5 | L≤3.0 | L≤5.0 |
| Bubble number（Usual print） | 4 | 1 | 2 | 1 | 0 |
| Bubble number（Print of the present invention） | 2 | 1 | 1 | 0 | 0 |
Claims (3)
1. a kind of plate glass batch, is made up of, wherein sand sandstone, soda ash, feldspar, lime stone, dolomite, saltcake, coal dust
Rock, soda ash, feldspar, lime stone, dolomite, the proportional quantity of saltcake are identical with existing conventional panel glass batch, and its feature exists
In the dosage of the coal dust is 2.4 ~ 3.6 % of conventional saltcake dosage；Take out the 5 ~ 50% of saltcake dosage and the coal of the dosage
Composite particles are made in powder, and composite particles are to be coated on outer layer by core, saltcake of pulverized coal particle and formed, characteristics of coal powder model
Enclose 0.15 ~ 0.4mm ＞ 90%, 0.3 ~ 0.9mm of particle size range ＞ 90% of composite particles；Composite particles and remaining saltcake add jointly
It is added in batch.
2. a kind of preparation method of plate glass batch as claimed in claim 1, comprises the following steps：
（1）, by coal dust dosage be saltcake weight 2.4 ~ 3.6 %, weigh the coal dust amount needed for a secondary glass batch, grain
0.15 ~ 0.5mm of scope ＞ 90% are spent, are dried for standby；
（2）, weigh saltcake amount needed for a secondary glass batch, taking wherein 5 ~ 50% saltcake, to be configured to sodium sulphate saturation molten
Liquid is standby；
（3）, using above-mentioned pulverized coal particle as core, above-mentioned saturation metabisulfite solution is sprayed into pulverized coal particle surface, makes sodium sulphate
Solvent evaporation drying in solution, saltcake are solidificated in pulverized coal particle surface, realize saltcake in coal dust after multiple coating cycles
The radial growth of particle surface, form composite particles, 0.3 ~ 0.8mm of particle size range ＞ 90% of above-mentioned composite particles, above-mentioned solution
After exhausting, composite particles are taken out；
（4）, above-mentioned composite particles are mixed by a conventional method with remaining saltcake in step 2 and other raw materials, be made
Glass batch.
3. the preparation method of a kind of plate glass batch according to claim 2, it is characterised in that the sodium sulphate is satisfied
With surfactant sodium lignin sulfonate, the 1% adhesive waterglass in solution also containing 0.5 %.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710805317.6A CN107601862B (en) | 2017-09-08 | 2017-09-08 | Plate glass batch and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710805317.6A CN107601862B (en) | 2017-09-08 | 2017-09-08 | Plate glass batch and preparation method thereof |
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| CN107601862A true CN107601862A (en) | 2018-01-19 |
| CN107601862B CN107601862B (en) | 2019-12-31 |
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| CN201710805317.6A Active CN107601862B (en) | 2017-09-08 | 2017-09-08 | Plate glass batch and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109824244A (en) * | 2019-04-12 | 2019-05-31 | 和县晶晶玻璃制品有限公司 | A kind of glass batch preheating technique |
| CN110922051A (en) * | 2019-12-25 | 2020-03-27 | 中建材蚌埠玻璃工业设计研究院有限公司 | High-softening-point glass for thin-film solar cell |
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| US20110302962A1 (en) * | 2010-06-09 | 2011-12-15 | Artur Gattermann | Method for producing clear glass or clear drawn glass by utilizing a special refining process |
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| CN104529157A (en) * | 2014-12-12 | 2015-04-22 | 刘成江 | Raw-sheet self-cleaning glass and preparation method thereof |
| CN104671662A (en) * | 2014-09-22 | 2015-06-03 | 合肥万泉非金属矿科技有限公司 | Method for producing glass by use of tailing resources |
| CN105254174A (en) * | 2015-09-21 | 2016-01-20 | 中国建材桐城新能源材料有限公司 | Carbon-free low mirabilite plate glass |
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2017
- 2017-09-08 CN CN201710805317.6A patent/CN107601862B/en active Active
Patent Citations (6)
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|---|---|---|---|---|
| US20080087044A1 (en) * | 2004-08-26 | 2008-04-17 | Carty William M | Selective batching for boron-containing glasses |
| US20110302962A1 (en) * | 2010-06-09 | 2011-12-15 | Artur Gattermann | Method for producing clear glass or clear drawn glass by utilizing a special refining process |
| CN104200943A (en) * | 2014-08-28 | 2014-12-10 | 天津一阳磁性材料有限责任公司 | Manufacturing method for neodymium-iron-boron magnetic material |
| CN104671662A (en) * | 2014-09-22 | 2015-06-03 | 合肥万泉非金属矿科技有限公司 | Method for producing glass by use of tailing resources |
| CN104529157A (en) * | 2014-12-12 | 2015-04-22 | 刘成江 | Raw-sheet self-cleaning glass and preparation method thereof |
| CN105254174A (en) * | 2015-09-21 | 2016-01-20 | 中国建材桐城新能源材料有限公司 | Carbon-free low mirabilite plate glass |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109824244A (en) * | 2019-04-12 | 2019-05-31 | 和县晶晶玻璃制品有限公司 | A kind of glass batch preheating technique |
| CN110922051A (en) * | 2019-12-25 | 2020-03-27 | 中建材蚌埠玻璃工业设计研究院有限公司 | High-softening-point glass for thin-film solar cell |
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| CN107601862B (en) | 2019-12-31 |
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